That way, when your drive approaches the end of its physical life, you’re given enough prior warning to source a replacement and transfer your data across before it gives up the ghost.ĬrystalDiskInfo is the perfect tool for the job – not only is it completely free, but it’s also capable of monitoring your external hard drives as well as your internal ones, which makes it pretty much unique among free disk-monitoring tools. Backing up is a vital part of everyday life, but it’s always better not to have to deal with file restoration or recovery, which is why it’s vital that you keep an eye on your hard drive’s health. We cannot overstate the importance of your hard drive to your computing life, seeing as all of your precious data, settings and other files are stored on it.